A Catalogue of Miniatures in the Collection of Collis P. Huntington. [New York], 1897, ill. on title page.
Bodo Hofstetter. Letter to Katharine Baetjer. June 19, 1995, states that the eight miniatures depict two brothers of Elector Frederick Augustus III of Saxony and their families; identifies 26.168.63 as Anthony [Anton] and 26.168.64 as either his first wife, Charlotte of Savoy, or second wife, Maria Therese of Hapsburg; identifies 26.168.67 as Maximilian, 26.168.68 as his first wife, Caroline Maria Therese of Parma, and the four young sitters as their children.
Graham Reynolds with the assistance of Katharine Baetjer. European Miniatures in The Metropolitan Museum of Art. Exh. cat., The Metropolitan Museum of Art. New York, 1996, pp. 194, 196, no. 277, ill. p. 195, date the eight miniatures (MMA 26.168.63–70) about 1790–1800, stating that their arrangement is not the original one, since the French mounts were made some forty years later, and that the couples might be incorrectly paired; believe that Anton (probably 26.168.67) is most likely depicted with his second wife, Maria Therese of Hapsburg (26.168.64); agree with Richard Allen's suggestion that the miniatures might be German, and state that they may have been painted over several years by more than one artist.